import os

def judge(str):
    for ch in str:
        if u'\u4e00'<=ch<=u'\u9fff':
            return True
    return False


if __name__ == "__main__":
    for line in os.popen("ls ./recipes/*.md"):
        num = line.split("/")[-1].split(".")[0]
        if num.isdigit(): 
            cont = open("./recipes/%s.md"%num,"r").read().strip()
            if judge(cont): print(num)
